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for long term energy efficiency, T2 fluorescent tubes are well tested in a few gyms here. cool temperature, bright, and don't flicker.

But not bright enough, right? You have frequently mentioned you need to go to ISO6400 in gyms in US.

Originally Posted by kwun

positioning would be interesting. i guess the only choice is ceiling mount. hung down mounting would not work as the location is shared with basketball?

Yes, Shared with basketball and netball but the ceiling would be too high for a basketball. Basketball isn't a major use of the hall. The hall also gets rented out for events (read 'big parties') but I don't think this is a major issue.

The badminton courts are arranged in 4 x 2 formation.

With lights that go into the ceiling, the shuttle is harder to see. The higher the ceiling, the worse it becomes. I noticed this in Singapore where I saw one place with a really high ceiling and lights (higher than the halls we get in HK).

With lights that hang down the sides of the court (I have seen a couple), the lighting is very nice. Even those very large arenas where the court lights are very high, the lights are good. I think it's because of the light differential. Lights that hang down have a darker ceiling. The existing lights do hang down but the ceiling is a little low due to some air conditioning system. So perhaps if the ceiling was raised, coloured darker and the lights kept at the same height, that would help a lot.

I find something like this at Vancouver Racquet Club is the best lighting for players. Two rows of fluorescent lights hanging about 25 ft off the ground right in between the courts. Lights up the courts nicely without any glare to the players on court. How well it works for photographers , I don't know. ....... For better photos, you'll need to get a prime lens with a large aperture. Like 50mm/1.8, or 85mm/1.4. Not zooms which don't let in enough light. And it's ok to use high iso's if you're just putting it on the web. As long as there is no movement artifact, there are lots of post processing software that can smoothen out the graininess of high iso's very nicely.

"The minimum recommended lighting level is 1000 Lux to provide even light over the court area.
[Note, TV will advise on their lighting requirements and the optimal conditions for still
photographers are 1800 - 2000 Lux].

Hi. This is Winners Badminton Court.
I think they have enough light to cover for the whole area. Also the ventilation and the place is spacious for all the players.
They have 12 courts in total.
This was taken last Battle of the Rackets tourney.